• (n.) A boy who operates the harness cords of a hand loom; also, a part of power loom that performs the same office.
Draw'boy` noun (Weaving) A boy who operates the harness cords of a hand loom; also, a part of power loom that performs the same office. 
an apparatus for controlling and manipulating the harness cords on a power loom. · a boy who operates and controls the harness cords of a draw-loom.